unexpected token "indent" in jade file

I got node.js express app using jade. And I use jade mixins. I edited jade file, after that got error on 44 line:

unexpected token "indent"
42| -i++
43|
> 44| include select
45|
46| mixin mainInputs()

select is jade file in the same directory with target mixin.

On picture you can see that there is no extra spacing (dot signs in sublime) on line 44

I already run command Indentation: Convert to Spaces in sublime text 3 but got the same error.

I tried to rename file select.jade to selectFile.jade to exclude confusion with select html tag, but still got the same error.

Update:

I tested select.jade independently:

select.jade:3
    1| include labelFor
    2| mixin select(id, text, placeholder)            
  > 3|     mixin labelFor(id, text)
    4|     select(id="#{id}", name="#{text}", data-placeholder="#{placeholder}")
    5|         option
    6| 

unexpected token "indent"

Then I tested labelFor.jade:

mixin labelFor(id, text)
    div
        div.label
            label(for="#{id}")= text
        br

labelFor.jade executed without errors.

I searched tabs \t in file select.jade. But it contains only spaces, no tabs.